Highland Technology V951
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Contents |
Overview
The V951 is a C-size VXI digital delay generator that accepts a single trigger input and generates six separately programmable delay outputs. The six channel delays may be combined in sequences to create three delay-and-width outputs. The module features a 32-bit dynamic range, 40-ps resolution, low jitter, and high rep-rate capability.
All channels are triggered simultaneously, and the module generates a "T0" edge 25 ns after the trigger, and six following delays, each programmable from 0 to 167.8 ms.
The outputs can also be configured to generate widths. This mode uses two channels, 1 and 2, to generate a pulse whose incidence is determined by channel 1's timing value and whose termination is determined by channel 2's timing value. Similarly, channels 3 and 4 , and 5 and 6 can be combined to operate in the width mode.
The V951 delay parameters may be programmed on-the-fly at VMEbus speeds without any generation of erroneous delays. All delay channels can be updated coherently.
The V956 option adds seven optical outputs. The standard version uses 850 nm lasers with ST connectors, and will couple a minimum of 250 microwatts into a 50/125 or 62/125 micron multimode fiber. The outputs are DC coupled and follow the corresponding T0 through T6 electrical outputs. User-accessible switches are provided to set the output polarity of each channel to positive, negative, or off.
Features
- Delay and width modes.
- 40 (39.0625) picosecond LSB resolution with 32-bit (167.8 ms) full-scale delay range.
- <25 ps RMS jitter typical.
- Adjustable trigger threshold and output levels.
- Insertion delay of 25 ns.
- Optional NIM level outputs for all delay channels.
- Optional optical outputs for all delay channels.
Specifications
| CONFORMANCE | ANSI/IEEE 1014-1987 VMEbus specification. VXIC specification, Rev 1.4. |
| DEVICE TYPE | Register based slave: A16:D16:D08(EO). |
| POWER REQUIRED | +5: 3.0A max; +12: 1.5A max at startup, 825mA max after warm-up; -12: 1.1A max at start-up, 550mA after warm-up. |
| PACKAGING | Single-width, C-size VXI module. |
| TIMING CHANNELS | Six timing channels (1-6). In DELAY mode, the V951 produces six independent delays. In WIDTH mode, channels 1 and 2 (as well as 3 and 4 and 5 and 6) allow the generation of pulses with programmable delay and duration. |
| REP RATE |
Up to 2.5 MHz. |
| INSERTION DELAY | 25ns |
| RESOLUTION | 39.0625 ps LSB (equivalent to a clock rate of 25.6 GHz). |
| RANGE | 32 bits allows a full scale range of 167.7722 ms on all channels. |
| JITTER | Less than (50 ps + 1E-9 x programmed delay) RMS. |
| ACCURACY | +- (500 ps + timebase stability). |
| TIMEBASE | Ovenized oscillator. Temperature coefficient<10 ppB/deg C; aging below 1ppM/year. Oscillator may be phase locked to a 10 MHz external reference via the front panel CLOCK I/O connector. |
| INPUTS | EXT TRG: Adjustable threshold level +-2.5V, slope, and termination (Hi-Z, 50 ohms to ground). |
| OUTPUTS | One fixed position marker (T0) and six delay (1-6) outputs. In the DELAY mode, a given timing channel is routed to the similarly numbered output. In the WIDTH mode, the width waveform generated timing channels 1 and 2, are routed to output 2, with 3 and 4 routed to output 4, and 5 and 6 routed to 6. All outputs are commonly adjustable for a baseline of 0 to -2.5 volts and amplitude of 0 to +5 volts. The slew rates are better than 2V/nSec. |
| CONNECTORS | Std: SMB, Options: LEMO; LEMO with independent NIM outputs, Optical outputs. |
Manuals, drivers, downloads & other resources
http://www.highlandtechnology.com/DSS/V951DS.html#V951-6
See also
V980 16-channel C-size time-to-digital converter
P400 Benchtop digital delay generator and pulse generator
Dealers, trainers, support, maintenance & service centers
Highland Technology, Inc.
United States
California
San Francisco
P: (415) 551-1700
F: (415) 551-5129
http://www.highlandtechnology.com
info@highlandtechnology.com
